[PATCH] Revert "Allow assigning of any user as delegate"

[Stephen Finucane]

On 25 Sep 22:37, Stephen Finucane wrote:
> From: Stephen Finucane <stephenfinucane at hotmail.com>
> 
> This reverts commit e0fd7cd91a5fbe0a0077c46bea870ccd09c8920d.
> 
> This change does not scale with a larger number of lists, and clearly
> needs more work. Revert until such a time as this is carried out.

Applied and backported to stable/1.1 for an upcoming 1.1.2 release.

Stephen